共 29 条
[2]
[Anonymous], 1994, NIH CONSENS STATEMEN, V12, P1
[3]
BENNETT FC, 1983, PEDIATRICS, V71, P319
[4]
BRITTON SB, 1981, J PEDIATR-US, V99, P937
[6]
DEPAPE A J, 1957, Can Med Assoc J, V77, P963
[7]
DONALD I, 1954, J OBSTET GYN BRIT EM, V61, P725
[9]
ENHORNING G, 1985, PEDIATRICS, V76, P145